Description
Industrial Pressure Gauge, Dial Size 2½” (63 mm), Range 0 to 21 Bar with Dual Scale of 300 PSI, Direct Mounting Bottom Entry, 1/4″ BSP (M) Connection, SS 304 Bayonet Case, SS 316L Wetted Parts, Accuracy 1% FSD
High Accuracy Stainless Steel Industrial Pressure Gauge for Demanding Process Applications
The”Ji” Japsin Instrumentation Industrial Pressure Gauge with a 2½ inch (63 mm) dial size, 0 to 21 Bar pressure range, dual scale display up to 300 PSI, SS 304 Bayonet Case, SS 316L Wetted Parts, and 1% Full Scale Deflection (FSD) accuracy is a premium-quality pressure measuring instrument engineered for accurate, reliable, and long-lasting performance in industrial environments. Designed to meet the rigorous demands of process industries, OEM equipment manufacturers, utilities, maintenance departments, and engineering professionals, this pressure gauge provides dependable pressure monitoring for a wide range of applications.
Pressure measurement is a critical parameter in industrial processes, directly affecting operational efficiency, equipment safety, product quality, and process control. Whether installed on compressors, pumps, hydraulic systems, water treatment equipment, chemical processing units, or manufacturing machinery, accurate pressure indication is essential for maintaining safe and efficient operations. The”Ji” Japsin Instrumentation Industrial Pressure Gauge is designed to deliver precise pressure readings while withstanding challenging operating conditions.
Manufactured using a robust SS 304 bayonet-type case and corrosion-resistant SS 316L wetted parts, this pressure gauge is ideal for applications involving water, air, gases, oils, chemicals, and other compatible media. The compact dial size and bottom entry mounting configuration make it suitable for installations where space is limited while maintaining excellent readability and accuracy.
Precision Pressure Measurement for Industrial Reliability
Industrial systems depend on accurate pressure monitoring to ensure smooth and uninterrupted operation. Pressure gauges provide operators with real-time information about system performance, helping detect abnormalities before they result in costly failures or downtime.
The “Ji” Japsin Instrumentation Industrial Pressure Gauge is calibrated to measure pressures from 0 to 21 Bar, making it suitable for medium-pressure applications across numerous industries. The clear dial layout ensures easy reading and fast interpretation of pressure values.
Its precision internal movement is designed to provide stable and repeatable measurements throughout the operating range, helping maintenance personnel and plant operators maintain optimal system conditions.
Superior Accuracy – 1% Full Scale Deflection
One of the defining features of this industrial pressure gauge is its ±1% FSD accuracy, making it suitable for applications where measurement precision is important.
Benefits of 1% Accuracy
- Reliable pressure monitoring
- Improved process control
- Reduced measurement errors
- Better equipment protection
- Enhanced operational safety
- Increased process efficiency
- More accurate maintenance decisions
High-accuracy pressure measurement allows operators to identify pressure variations quickly and respond before they affect production quality or equipment performance.
Stainless Steel 304 Bayonet Case Construction
The pressure gauge is housed in a premium SS 304 bayonet-type case, offering superior durability and serviceability.
Advantages of SS 304 Bayonet Case
- Excellent corrosion resistance
- Strong mechanical protection
- Long operational life
- Suitable for harsh industrial environments
- Easy maintenance and recalibration access
- Improved resistance to dust and moisture
The bayonet ring construction allows easy access to internal components during maintenance, inspection, or calibration procedures.
SS 316L Wetted Parts for Corrosion Resistance
The process-wetted components of the gauge are manufactured from SS 316L stainless steel, a material widely recognized for its excellent resistance to corrosion and chemical attack.
Benefits of SS 316L Wetted Parts
- Suitable for aggressive media
- Excellent corrosion resistance
- Longer service life
- Improved process compatibility
- Reliable performance in harsh environments
- Reduced maintenance requirements
This construction makes the gauge suitable for applications involving water, chemicals, oils, gases, steam, and various industrial fluids.
Dual Scale Reading – Bar and PSI
The gauge features a convenient dual-scale dial displaying:
- 0 to 21 Bar
- 0 to 300 PSI
This dual-unit configuration allows users to monitor pressure using either metric or imperial units without requiring manual conversion.
Advantages of Dual Scale Display
- Improved operator convenience
- Quick pressure interpretation
- Reduced conversion errors
- Suitable for international equipment
- Enhanced usability in mixed-unit facilities
The clear and well-marked dial improves readability and helps operators make informed decisions quickly.
Compact 63 mm Dial Size
The 2½ inch (63 mm) dial size provides an excellent balance between compactness and readability.
Benefits of 63 mm Dial
- Space-saving installation
- Ideal for OEM equipment
- Suitable for confined locations
- Lightweight design
- Easy pressure monitoring
The compact profile allows installation on machinery, pumps, compressors, and process equipment where larger gauges may not be practical.
Direct Mounting Bottom Entry Design
The gauge is supplied with a bottom entry process connection, allowing direct installation onto pressure lines, manifolds, vessels, and equipment.
Advantages
- Easy installation
- Secure mounting
- Improved visibility
- Reduced installation complexity
- Widely accepted industrial configuration
The bottom entry design is commonly used in industrial applications where gauges are mounted vertically for easy observation.
Standard 1/4″ BSP Male Connection
The gauge is fitted with a 1/4″ BSP (Male) threaded connection, ensuring compatibility with standard industrial piping systems.
Connection Benefits
- Easy integration
- Reliable sealing
- Standardized fitting compatibility
- Quick replacement
- Secure installation
The BSP connection is widely used across industrial sectors and simplifies installation and maintenance activities.
Applications Across Industries
The “Ji” Japsin Instrumentation Industrial Pressure Gauge is suitable for a broad range of industrial pressure monitoring applications.
1. Air Compressors
Used for monitoring compressed air pressure and maintaining efficient compressor operation.
2. Water Treatment Plants
Ideal for monitoring pumps, filtration systems, and water distribution networks.
3. Hydraulic Systems
Suitable for medium-pressure hydraulic circuits and industrial machinery.
4. Chemical Processing Plants
SS 316L wetted parts provide compatibility with various chemical applications.
5. Pharmaceutical Industry
Used in process equipment where corrosion resistance and measurement accuracy are important.
6. Food & Beverage Industry
Suitable for hygienic and process control applications involving compatible media.
7. Manufacturing Plants
Supports pressure monitoring in production machinery and utility systems.
8. OEM Equipment
Frequently integrated into industrial machines and packaged equipment.
Importance of Accurate Pressure Monitoring
Pressure is one of the most critical process variables in industrial operations. Accurate pressure indication helps maintain:
- Process stability
- Product quality
- Equipment protection
- Energy efficiency
- Worker safety
- Regulatory compliance
Inaccurate pressure measurement can lead to equipment damage, production losses, and unexpected downtime. A high-quality pressure gauge helps prevent these issues by providing dependable pressure indication.
Long Service Life and Low Maintenance
The combination of SS 304 and SS 316L construction ensures long-term durability and dependable operation.
Maintenance Benefits
- Corrosion-resistant construction
- Stable calibration performance
- Easy serviceability
- Minimal maintenance requirements
- Extended operational lifespan
Routine inspection and calibration can further enhance performance and maintain measurement accuracy over time.
Trusted Quality from Japsin Instrumentation
Japsin Instrumentation is a recognized manufacturer and supplier of industrial process measurement and control instruments. Each pressure gauge is produced under stringent quality standards to ensure:
- Accurate performance
- Reliable operation
- Consistent quality
- Long-term durability
- Customer satisfaction
The result is a pressure gauge that professionals can trust for critical industrial applications.
Why Choose “Ji” Japsin Instrumentation Industrial Pressure Gauge?
The Industrial Pressure Gauge, 2½” (63 mm) Dial, 0 to 21 Bar Range, Dual Scale 300 PSI, Bottom Entry, 1/4″ BSP (M), SS 304 Bayonet Case, SS 316L Wetted Parts, Accuracy 1% FSD is designed to deliver precise pressure measurement, exceptional durability, and reliable performance in demanding industrial environments.
With its corrosion-resistant stainless steel construction, high measurement accuracy, compact design, dual-scale readability, and robust bayonet case, this gauge is an excellent choice for process industries, utilities, manufacturing plants, OEM applications, and maintenance professionals seeking dependable pressure monitoring solutions. Whether installed on compressors, pumps, hydraulic systems, or process equipment, this industrial pressure gauge provides the confidence and performance required for efficient and safe operations.
Japsin Instrumentation – Since 1974

Neelkanth Varma –
Good quality
Arya Reddy –
Exceptional fit, great investment!
Udbhav Patel –
Nice Product